EARNINGS PER COMMON SHARE AND DIVIDENDS PER SHARE - Dividends Per Share (Details) $ / shares in Units, $ in Millions						3 Months Ended
	Jun. 01, 2022 $ / shares	Jun. 01, 2022 USD ($) $ / shares	May 03, 2022 $ / shares	May 03, 2022 $ / shares	Mar. 01, 2021	Mar. 31, 2022 $ / shares	Dec. 31, 2021 $ / shares	Mar. 31, 2021 $ / shares
Dividends Payable [Line Items]
Common stock, dividends, per share, declared (in dollars per share)						$ 0.86	$ 0.835
Common stock, dividends per share, paid (in dollars per share)						0.860		$ 0.835
Increase in quarterly dividend per common share (percent)					3.00%
Common shares | Forecast
Dividends Payable [Line Items]
Common stock, dividends per share, paid (in dollars per share)	$ 0.86000
Common shares | Subsequent event
Dividends Payable [Line Items]
Common stock, dividends, per share, declared (in dollars per share)			$ 0.86000
Preferred share investment | Preference Shares, Series A | Forecast
Dividends Payable [Line Items]
Preferred stock, dividend paid per share (dollars per share)	0.34375
Preferred share investment | Preference Shares, Series A | Subsequent event
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (dollars per share)			0.34375
Preferred share investment | Preference Shares, Series B | Forecast
Dividends Payable [Line Items]
Preferred stock, dividend paid per share (dollars per share)	0.21340
Preferred share investment | Preference Shares, Series B | Subsequent event
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (dollars per share)			0.21340
Preferred share investment | Preference Shares, Series C
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (dollars per share)						$ 0.18400	$ 0.15719
Preferred share investment | Preference Shares, Series C | Forecast
Dividends Payable [Line Items]
Preferred stock, dividend paid per share (dollars per share)	0.18400
Preferred share investment | Preference Shares, Series C | Subsequent event
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (dollars per share)			0.18400
Preferred share investment | Preference Shares, Series D | Forecast
Dividends Payable [Line Items]
Preferred stock, dividend paid per share (dollars per share)	0.27875
Preferred share investment | Preference Shares, Series D | Subsequent event
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (dollars per share)			0.27875
Preferred share investment | Preference Shares, Series F | Forecast
Dividends Payable [Line Items]
Preferred stock, dividend paid per share (dollars per share)	0.29306
Preferred share investment | Preference Shares, Series F | Subsequent event
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (dollars per share)			0.29306
Preferred share investment | Preference Shares, Series H | Forecast
Dividends Payable [Line Items]
Preferred stock, dividend paid per share (dollars per share)	0.27350
Preferred share investment | Preference Shares, Series H | Subsequent event
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (dollars per share)			0.27350
Preferred share investment | Preference Shares, Series J | Forecast
Dividends Payable [Line Items]
Preferred stock, dividend paid per share (dollars per share)		$ 0.30540
Payments for repurchase of redeemable preferred stock | $		$ 200
Preferred share investment | Preference Shares, Series J | Subsequent event
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (dollars per share)				$ 0.30540
Preferred share investment | Preference Shares, Series L | Forecast
Dividends Payable [Line Items]
Preferred stock, dividend paid per share (dollars per share)		$ 0.30993
Preferred share investment | Preference Shares, Series L | Subsequent event
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (dollars per share)				0.30993
Preferred share investment | Preference Shares, Series N | Forecast
Dividends Payable [Line Items]
Preferred stock, dividend paid per share (dollars per share)	0.31788
Preferred share investment | Preference Shares, Series N | Subsequent event
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (dollars per share)			0.31788
Preferred share investment | Preference Shares, Series P | Forecast
Dividends Payable [Line Items]
Preferred stock, dividend paid per share (dollars per share)	0.27369
Preferred share investment | Preference Shares, Series P | Subsequent event
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (dollars per share)			0.27369
Preferred share investment | Preference Shares, Series R | Forecast
Dividends Payable [Line Items]
Preferred stock, dividend paid per share (dollars per share)	0.25456
Preferred share investment | Preference Shares, Series R | Subsequent event
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (dollars per share)			0.25456
Preferred share investment | Preference Shares, Series 1 | Forecast
Dividends Payable [Line Items]
Preferred stock, dividend paid per share (dollars per share)		0.37182
Preferred share investment | Preference Shares, Series 1 | Subsequent event
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (dollars per share)				0.37182
Preferred share investment | Preference Shares, Series 3 | Forecast
Dividends Payable [Line Items]
Preferred stock, dividend paid per share (dollars per share)	0.23356
Preferred share investment | Preference Shares, Series 3 | Subsequent event
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (dollars per share)			0.23356
Preferred share investment | Preference Shares, Series 5 | Forecast
Dividends Payable [Line Items]
Preferred stock, dividend paid per share (dollars per share)		$ 0.33596
Preferred share investment | Preference Shares, Series 5 | Subsequent event
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (dollars per share)				$ 0.33596
Preferred share investment | Preference Shares, Series 7 | Forecast
Dividends Payable [Line Items]
Preferred stock, dividend paid per share (dollars per share)	0.27806
Preferred share investment | Preference Shares, Series 7 | Subsequent event
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (dollars per share)			0.27806
Preferred share investment | Preference Shares, Series 9 | Forecast
Dividends Payable [Line Items]
Preferred stock, dividend paid per share (dollars per share)	0.25606
Preferred share investment | Preference Shares, Series 9 | Subsequent event
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (dollars per share)			0.25606
Preferred share investment | Preference Shares, Series 11 | Forecast
Dividends Payable [Line Items]
Preferred stock, dividend paid per share (dollars per share)	0.24613
Preferred share investment | Preference Shares, Series 11 | Subsequent event
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (dollars per share)			0.24613
Preferred share investment | Preference Shares, Series 13 | Forecast
Dividends Payable [Line Items]
Preferred stock, dividend paid per share (dollars per share)	0.19019
Preferred share investment | Preference Shares, Series 13 | Subsequent event
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (dollars per share)			0.19019
Preferred share investment | Preference Shares, Series 15 | Forecast
Dividends Payable [Line Items]
Preferred stock, dividend paid per share (dollars per share)	0.18644
Preferred share investment | Preference Shares, Series 15 | Subsequent event
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (dollars per share)			0.18644
Preferred share investment | Preference Shares, Series 19 | Forecast
Dividends Payable [Line Items]
Preferred stock, dividend paid per share (dollars per share)	$ 0.30625
Preferred share investment | Preference Shares, Series 19 | Subsequent event
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (dollars per share)			$ 0.30625